Just some ideas recently...
Strike ship:
Direct Link:
https://s33.postimg.cc/93d9n6ifj/Romulan_Arkaris-_Class_00.jpg
Research/Science ship:
Direct Link:
https://s33.postimg.cc/r7ga7e0jz/Romulan_T_Arris-_Class_00.jpg
Strike ship:
Direct Link:
https://s33.postimg.cc/93d9n6ifj/Romulan_Arkaris-_Class_00.jpg
Research/Science ship:
Direct Link:
https://s33.postimg.cc/r7ga7e0jz/Romulan_T_Arris-_Class_00.jpg
. I particularly like the T'Arris class ship with that cool forward section, which is definitely reminiscent of the double-headed Romulan raptor. The Akaris class is cool too it looks like it can take down an Excelsior class in one fell swoop.